How can you initialize an array of two characters to 'a' and 'b'? Please select all that apply.Group of answer choiceschar[] charArray = new char[2]; charArray = {'a', 'b'};char[2] charArray = {'a', 'b'};char[] charArray = {'a', 'b'};char[] charArray = new char[2]; charArray[0] = 'a'; charArray[1] = 'b';
Question
How can you initialize an array of two characters to 'a' and 'b'? Please select all that apply.Group of answer choiceschar[] charArray = new char[2]; charArray = {'a', 'b'};char[2] charArray = {'a', 'b'};char[] charArray = {'a', 'b'};char[] charArray = new char[2]; charArray[0] = 'a'; charArray[1] = 'b';
Solution
The correct ways to initialize an array of two characters to 'a' and 'b' are:
char[] charArray = {'a', 'b'};char[] charArray = new char[2]; charArray[0] = 'a'; charArray[1] = 'b';
The first option directly initializes the array with the values 'a' and 'b'. The second option first creates an array of size 2, then assigns 'a' to the first position and 'b' to the second position.
The options char[] charArray = new char[2]; charArray = {'a', 'b'}; and char[2] charArray = {'a', 'b'}; are incorrect. The first one is incorrect because you cannot reassign values to an array directly after its declaration. The second one is incorrect because in Java, you cannot specify the size of the array when you declare and initialize it at the same time.
Similar Questions
Which of the following statements are correct? Group of answer choiceschar[][] charArray = {'a', 'b'};char[2][2] charArray = {{'a', 'b'}, {'c', 'd'}};char[2][] charArray = {{'a', 'b'}, {'c', 'd'}};char[][] charArray = {{'a', 'b'}, {'c', 'd'}};
True or False? When you create an array using the following statement, the element values are automatically initialized to 0.int[][] matrix = new int[5][5]; Group of answer choicesTrueFalse Flag question: Question 2Question 21 ptsWhich of the following statements are correct? Group of answer choiceschar[][] charArray = {'a', 'b'};char[2][2] charArray = {{'a', 'b'}, {'c', 'd'}};char[2][] charArray = {{'a', 'b'}, {'c', 'd'}};char[][] charArray = {{'a', 'b'}, {'c', 'd'}}; Flag question: Question 3Question 31 ptsWhat is the indexed variable for the element at the first row and first column in array a?Group of answer choicesa[0][0]a[1][1]a[0][1]a[1][0] Flag question: Question 4Question 41 ptsGiven double[][] x = new double[4][5], what are x.length and x[2].length? Group of answer choices4 and 44 and 55 and 45 and 5 Flag question: Question 5Question 51 ptsHow many elements are in the array matrix, int[][] matrix = new int[5][5]?Group of answer choices14202530 Flag question: Question 6Question 61 ptsAssume int[][] x = {{1, 2}, {3, 4}, {5, 6}}, what are x.length and x[0].length? Group of answer choices3 and 32 and 23 and 22 and 3 Flag question: Question 7Question 71 ptsAnalyze the following code:public class Test { public static void main(String[] args) { boolean[][] x = new boolean[3][]; x[0] = new boolean[1]; x[1] = new boolean[2]; x[2] = new boolean[3]; System.out.println("x[2][2] is " + x[2][2]); } } Group of answer choicesThe program has a compile error because new boolean[3][] is wrong.The program has a runtime error because x[2][2] is null.The program runs and displays x[2][2] is null.The program runs and displays x[2][2] is true.The program runs and displays x[2][2] is false. Flag question: Question 8Question 81 ptsWhat is the output of the following code?public class Test { public static void main(String[] args) { int[][] matrix = {{1, 2, 3, 4}, {4, 5, 6, 7}, {8, 9, 10, 11}, {12, 13, 14, 15}}; for (int i = 0; i < 4; i++) System.out.print(matrix[i][1] + " "); } } Group of answer choices1 2 3 44 5 6 71 3 8 122 5 9 133 6 10 14 Flag question: Question 9Question 91 ptsHow do you declare a 2-dimensional array in Java? Group of answer choicesint[][] array;int array[][];int[] array[];All of the above Flag question: Question 10Question 101 ptsWhat is the output of the following Java code snippet? int[][] numbers = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; System.out.println(numbers[1][2]); Group of answer choices1689 Flag question: Question 11Question 111 ptsWhat exception is thrown if you try to access an element at the index out of bounds in a two-dimensional array in Java? Group of answer choicesArrayIndexOutOfBoundsExceptionIndexOutOfBoundsExceptionOutOfBoundsExceptionNoSuchElementException Flag question: Question 12Question 121 ptsGiven the statement below, how many elements does testArray contain? int[][] testArray = {{1, -2, 3}, {}, {5, 6}}; Group of answer choices356The code will result in a compilation error
How do you correctly initialize a string to store "C programming"?Marks : 1Negative Marks : 0Answer herechar str[13] = "C programming";char str[] = {"C programming"};char str[] = "C programming";Both char str[] = {"C programming"}; and char str[] = "C programming"; are correctClear
Multi Choice Type QuestionHow do you correctly initialize a string to store "C programming"?Marks : 1Negative Marks : 0Answer herechar str[13] = "C programming";char str[] = {"C programming"};char str[] = "C programming";Both char str[] = {"C programming"}; an
Which of the following is NOT a valid way to declare and initialize a string variable in Java?Question 5Answera.String str = "Hello";b.String str = new String("Hello");c.String str = 'Hello';d.char[ ] charArray = {'H', 'e', 'l', 'l', 'o'};String str = new String(charArray);
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.